A researcher is conducting an experiment over a school year to determine if a drug prevention program is working amongst high school juniors and seniors. They ask students about their drug use habits at the beginning of the school year, and then again after the program ends. Additionally, another demographically similar school that is not using the program is given the same surveys to compare
All of the students had to voluntarily participate in the program. What is not being controlled for/
a. selection biases.
b. testing.
c. history.
d. maturation.
e. causal time-order
A
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Atlanta, Georgia has recently cleaned up all of its toxic waste sites
Indicate whether the statement is true or false
For which of the following diseases have death rates reached a peak for those age 20-29 before falling and then rising again after age 50?
a) Smallpox b) Measles c) Tuberculosis d) Alzheimer's disease
People may behave differently in artificial situations than they would in the "real world." This poses a particular problem for researchers using
A. replication. B. laboratory experiments. C. questionnaires. D. content analysis.
In __________ men assume the role of breadwinner
a. low-technological tribal societies b. fortified households c. private households d. advanced market economies